[Question] Avoid exception "View is null" on Android

In Xamarin.Forms, when I leave a page with a MediaPlayerElement on it, and come back, I restart the MediaPlayer at "OnAppearing" of the view. This is working fine on iOS, however gives me an exception on Android. I guess the problem is, that I create new MediaPlayer while the MediaPlayerElement is still invisible.

<vlc:MediaPlayerElement 
     x:Name="videoView"
     BackgroundColor="{DynamicResource Black}"
     EnableRendererDiscovery="True"
     MediaPlayer="{Binding MediaPlayer}"
     />

--- End of managed Java.Lang.NullPointerException stack trace ---
java.lang.NullPointerException: view is null
	at org.videolan.libvlc.AWindow.setView(AWindow.java:235)
	at org.videolan.libvlc.AWindow.setVideoView(AWindow.java:268)
	at mono.java.lang.RunnableImplementor.n_run(Native Method)
	at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:30)
	at android.os.Handler.handleCallback(Handler.java:907)
	at android.os.Handler.dispatchMessage(Handler.java:105)
	at android.os.Looper.loop(Looper.java:216)
	at android.app.ActivityThread.main(ActivityThread.java:7625)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)

After this crash, the view cannot be used anymore.

The crash happens at this code snippet:

MediaPlayer = new MediaPlayer(Media)
                        {
                            EnableHardwareDecoding = true,
                            NetworkCaching = Convert.ToUInt32(NetworkBufferTime),
                            FileCaching = Convert.ToUInt32(FileCaching),
                        };

This MediaPlayer is bound to the "MediaPlayer" property of the MediaPlayerElement. I also tried to check if the VideoView is null, before updating the MediaPlayer property. However it says, view is not null.

bool viewReady = videoView?.VideoView != null

So my question now, is there a way to check in code behind if the native view is null or not? Is there any property of the MediaPlayerElement or MediaPlayer object which indicates that the view is not ready? So that I can check it before updating the MediaPlayer property?

Thank you!